The housing stock
What we are usually working with in South Ealing
Chimney breasts and the alcoves either side of them break the run into short pieces before anyone has drawn a kitchen. A run that has to be scribed twice takes an hour longer than one that does not, and the day is costed with that hour in it. Dust extraction indoors, or the cut happens outside.
South Ealing Road is a busy bus corridor with permit parking either side, and once the side return is built out the terraces have no side access left at all.
The original scullery gully is still live in the yard outside the back door, and new waste from the sink joins a drain laid for a copper and a stone sink. Scribing takes longer than the carry does, so the quiet half of the day is the half that runs over. Lath and plaster is not a fixing, and is treated accordingly.
What we are measuring in, mostly, is Edwardian terrace, Victorian terrace, 1930s semi and small modern block. The template reads them differently even where the layout looks identical.
There is nothing to visit in South Ealing. Samples are posted free, the template is taken in your kitchen and the stone is fitted there too.